Honolulu County topographic maps

Average elevation: 43 m

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The route of H-3 extends from its western terminus with east–west Moanalua Freeway (H-201; connecting eastward to Honolulu or westward to H-1 and Aiea) to the 1100-foot (335-m) elevation entrance into the Tetsuo Harano Tunnels, penetrating the Ko‘olau crest. The freeway continues beyond to Kaneohe on…

Average elevation: 79 m

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Approximately 3.9 million years ago, the Waiʻanae volcano created the island of Oʻahu. About 2.5 million years ago, the Koʻolau volcano breached the ocean's surface and continued to grow in elevation until about 1.7 million years ago, when it went dormant. Most of the eastern or windward portion of Oʻahu…

Average elevation: 32 m

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There are several streams that run through Waipahu, including Waikele Stream and Kapakahi Stream. Waikele Stream runs along the Hawaii Plantation Village and down into Pouhala Marsh Wildlife Sanctuary, which is habitat for several endangered bird species that are endemic to Hawaii. There is roughly 140 feet of…

Average elevation: 164 m

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